Replacing generic RECEPTACLES

Oyaide WPC-Z and Z2...... High performance mounting frame and panel....The appearance of the WPC-Z attracted audio enthusiasts and created a strong impression of mounting frame for wall outlets. In 2007, the long awaited double type base, WPC-Z2, has come on the scene. The most important function for high performance mounting frame is attenuating vibration dampening property. The hybrid materials , each of them has different resonance frequency, perform passive vibration suppression to maximize performance of the Furutech GTX -D-R .Furthermore, carbon fiber reinforced plastic, the material of face plate, has functions of static protection and electromagnetic shielding WPC-Z series are the ultimate optional accessory for unlocking unlimited potential of the Furutech GTX D-R. 

Well it sounds like you are having fun with your hobby and I suspect there are other hobbies in which people spend gobs of money on tweeks that are of questionable value. I have no problem at all with hobbies and spending your money as you see fit. What I do have difficulty with (as I’ve mentioned before) are rave reviews (like yours) that tout a tweek as if a deaf person could hear the dramatic improvement. This, I think does a disservice to new, inexperienced readers of this forum.

If a "special" plug (OK....receptacle sounds better) did squeeze out any actual improvement, I submit it would be:
1. Very subtle (like with exotic cables, interconnects and power cords); not to the over-the-top degree to which you claim.
2. Nearly undetectable unless you could switch back and forth between plugs (probably electrically impossible) in an A/B type test. Audio memory, as I hope you know, is so perishable, it is almost impossible to remember the nuances of an audio track unless the transition is near instantaneously.
3. Expectation bias. The more you spend, the higher the expectation.

I’ve been into audio for a long time and never thought I see a day that good equipment would sound so lacking that you would have to spend $900.00 on a plug. But considering what cables have done, I should have suspected. Next? Pressure suits you can wear so that after you suck all the air out of your room you can listen in a vacuum?

BTW....not looking for a debate; just posting a counter-opinion for the record. Like with politics, no one is going to change their mind but we can influence those who have not yet reached an opinion.

@tattooedtrackman while the Oyaide CF faceplates are great their weakspot (endemic to the design of US outlets) is the single screw fixing in the center leaving the edges free to vibrate. Try applying small strips of FoQ damping material across the edge of the CF plate onto the aluminium surround and you will be astonished at the improvement. When it comes to managing vibration everything matters it seems.

Also the screws have a tendency to strip so changing faceplates can be a pain, this may be an interaction with the underlying outlets (I use SR Blues, Reds and Blacks and the stripping has happened with reds)

Oyaide WPC-Z and Z2...... High performance mounting frame and panel....The appearance of the WPC-Z attracted audio enthusiasts and created a strong impression of mounting frame for wall outlets. In 2007, the long awaited double type base, WPC-Z2, has come on the scene. The most important function for high performance mounting frame is attenuating vibration dampening property. The hybrid materials , each of them has different resonance frequency, perform passive vibration suppression to maximize performance of the Furutech GTX -D-R .Furthermore, carbon fiber reinforced plastic, the material of face plate, has functions of static protection and electromagnetic shielding WPC-Z series are the ultimate optional accessory for unlocking unlimited potential of the Furutech GTX D-R.

I recently replaced my old $5 hospital grade outlets with $100 Oyaide R1's and replaced my old dedicated line comprised of 13 ga Romex with cryo'ed 10. The improvement; minimal. "Minimal" as in de minimus.  I have resolving gear-ARC Ref 6 and Ref 150 SE, Cardas Beyond cabling, etc. Carbon fiber face plates and tuned mounting boxes? C'mon Dude. Why not go the next step and replace the stud the mounting box is attached to with some harmonically tuned 2 by 4 made of ancient dried ebony wood? And the drywall should be replaced too before it introduces bad resonances since the box and plate are mounted flush with the drywall. Maybe it ought to be carbon fiber too. This sounds like the parody of Madison Avenue ad copy; " the ultimate optional accessory for unlocking unlimited potential of the Furutech GTX D-R.". I have an open mind and have implemented tons of tweaks, but this is Tice-Clock goofiness. 

@fsonicsmith .............. First of all i am only giving you MY opinion on what i did hear. And the result was ALOT more than minimal. I wrote my findings as mentioned above. I too have resolving gear. Arc Ref 6, Krell FPB 600, Rega Isis cdp. Straightwire Crescendos from speaker cable quad wired to my B&W 800 Matrix , Straightwire Crescendos XLR ICS. Shunyata Sigma HC PC , Shunyata Sigma Digital PC. Shunyata King Cobra CX. Second of all i am also using Furutech GTX -D-R with my Oyaide aluminum base and carbon fiber plates. You are giving you opinion on yours as minimal.. Thats what you are using as i am not using what you are number 1. And i dont have to keep switching outlets and plates back and forth to my judgement ....I know what i have heard before i switched. And what i am hearing now. You sound like a skeptic about those who are using SR Blue fuses  Some of those people make judgments and have not even tried them. Does that sound familiar DUDE?